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JavaScript

Once relegated to the browser as one of the 3 core technologies of the web, JavaScript can now be found almost anywhere you find code. JavaScript developers move fast and push software development forward; they can be as opinionated as the frameworks they use, so let's keep it clean here and make it a place to learn from each other!

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PICK A PLATFORM, ANY PLATFORM...

PICK A PLATFORM, ANY PLATFORM...

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1 min read
Your LLM Traces Have a Spec Now — Here's a Way to Check Them Against It

Your LLM Traces Have a Spec Now — Here's a Way to Check Them Against It

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2 min read
I pasted a production JWT into a random website. Then I read their privacy policy.

I pasted a production JWT into a random website. Then I read their privacy policy.

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3 min read
I built a complete DJ console in a single HTML file using Web Audio API

I built a complete DJ console in a single HTML file using Web Audio API

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2 min read
Monetize Express.js APIs for AI Agents in 3 Lines of Code with x402

Monetize Express.js APIs for AI Agents in 3 Lines of Code with x402

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2 min read
If you render user HTML, you have an SSRF problem. Here is the code that fixes it.

If you render user HTML, you have an SSRF problem. Here is the code that fixes it.

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5 min read
Next.js Image Optimization in 2026: `next/image` v4, AVIF by Default, and the Config Changes Teams Miss

Next.js Image Optimization in 2026: `next/image` v4, AVIF by Default, and the Config Changes Teams Miss

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13 min read
Building a URL-to-PDF API with Playwright: the edge cases, and how to make the PDF fillable

Building a URL-to-PDF API with Playwright: the edge cases, and how to make the PDF fillable

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11 min read
I Got Tired of Bloated Dev Tools, So I Built 15 Fast, 100% Client-Side Micro-Tools

I Got Tired of Bloated Dev Tools, So I Built 15 Fast, 100% Client-Side Micro-Tools

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2 min read
VS Code 1.134 Is Here — Side-by-Side Chats, Prompt Timeline, and More Features You'll Actually Use

VS Code 1.134 Is Here — Side-by-Side Chats, Prompt Timeline, and More Features You'll Actually Use

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7 min read
Sanchita Karma makes stronger Praarabdha | More Difficult to Win.

Sanchita Karma makes stronger Praarabdha | More Difficult to Win.

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2 min read
Five things that break when you move from Jest to Vitest

Five things that break when you move from Jest to Vitest

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3 min read
Does React Break HTML Rules? Let's Find Out

Does React Break HTML Rules? Let's Find Out

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4 min read
Wagyu Mack & Cheese

Frontend Challenge Perfect Landing Submission 🍲🥧

Wagyu Mack & Cheese

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2 min read
I built 59 free browser-based dev tools in vanilla JS — here's what I learned

I built 59 free browser-based dev tools in vanilla JS — here's what I learned

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2 min read
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